Ini ndinowana sei yekutanga mitsara yefaira muLinux?

Ini ndinowana sei yekutanga mitsara zana muLinux?

Nyora murairo unotevera wemusoro kuratidza mitsetse gumi yekutanga yefaira inonzi "bar.txt":

1. musoro -10 bar.txt.
2. musoro -20 bar.txt.
3. sed -n 1,10p /etc/group.
4. sed -n 1,20p /etc/group.
5. awk 'FNR <= 10' /etc/passwd.
6. awk 'FNR <= 20' /etc/passwd.
7. perl -ne'1..10 uye print'/etc/passwd.
8. perl -ne'1..20 uye print'/etc/passwd.

Zvita 18. 2018 g.

Ndinoratidza sei mitsetse gumi yekutanga yefaira muLinux?

Kuti utarise mitsetse yekutanga yefaira, nyora musoro filename, uko filename ndiro zita refaira raunoda kutarisa, wobva wadzvanya. . Nekutadza, musoro unokuratidza mitsetse gumi yekutanga yefaira. Unogona kushandura izvi nekunyora musoro -number filename, uko nhamba ndiyo nhamba yemitsara yaunoda kuona.

Ini ndino grep sei mutsara wekutanga wefaira muLinux?

musoro -n10 filename | grep ... musoro unoburitsa mitsara gumi yekutanga (uchishandisa iyo -n sarudzo), uye ipapo unogona pombi inobuda kuti grep . Unogona kushandisa mutsara unotevera: musoro -n 10 /path/to/file | grep […]

Iwe unowana sei mutsara mufaira muLinux?

Grep iLinux / Unix yekuraira-mutsara chishandiso chinoshandiswa kutsvaga tambo yemavara mune yakatarwa faira. Mavara ekutsvaga manyorerwo anonzi anogara achitaurwa. Kana yawana mechi, inodhinda mutsara nemhedzisiro. Iwo grep murairo unobatsira paunenge uchitsvaga kuburikidza nehombe faira mafaira.

Ndinoratidza sei nhamba yemitsara mufaira muUnix?

Maitiro ekuverenga mitsara mufaira muUNIX / Linux

1. Iyo "wc -l" yekuraira kana ichimhanya pane iyi faira, inoburitsa mutsara kuverenga pamwe chete nefaira rezita. $ wc -l file01.txt 5 file01.txt.
2. Kuti usiye zita refaira kubva pamhedzisiro, shandisa: $ wc -l <file01.txt 5.
3. Iwe unogona kugara uchipa yekuraira kuburitsa kune wc command uchishandisa pombi. Semuyenzaniso:

Ini ndinotevedzera sei mitsara gumi yekupedzisira muLinux?

1. kuverenga nhamba yemitsara mufaira, uchishandisa `katsi f. txt | wc -l` uye wozoshandisa musoro nemuswe mupombi kudhinda mitsetse yekupedzisira 81424 yefaira (mitsetse #totallines-81424-1 kusvika #totallines).

Ndeupi murairo unoshandiswa kuratidza mitsara gumi yekutanga kwefaira?

Musoro wekuraira, sezvinoreva zita, dhinda yepamusoro N nhamba yedata reiyo yakapihwa. Nekutadza, inodhinda mitsetse gumi yekutanga yemafaira akatsanangurwa. Kana kupfuura rimwe zita refaira rakapihwa ipapo data kubva kune imwe neimwe faira inotungamirwa nezita rayo refaira.

Ini ndinoona sei mitsara zana yekupedzisira yefaira muUnix?

Linux muswe command syntax

Muswe murairo unodhinda nhamba shoma yekupedzisira yemitsara (mitsetse gumi nekusingaperi) yerimwe faira, yobva yaguma. Muenzaniso 10: Nekumisikidza "muswe" inodhinda mitsara gumi yekupedzisira yefaira, yobva yabuda. sezvauri kuona, izvi zvinodhinda mitsara gumi yekupedzisira ye /var/log/messages.

Ndeupi murairo unoshandiswa kuona mafaira?

Ndizvo zvose! faira rairo rinobatsira Linux utility kuona mhando yefaira isina yekuwedzera.

Ini ndinogadzirisa sei mitsara gumi inotevera?

Iwe unogona kushandisa iyo -B uye -A kudhinda mitsetse pamberi uye mushure memutambo. Ichadhinda mitsara gumi pamberi pemutambo, kusanganisira iyo yekufananidza mutsara pachayo. Uye kana iwe uchida kudhinda gumi mitsetse yekutungamira uye yekutevera inobuda mamiriro. -A num -after-context=num Dhinda nhamba mitsara yezvinyorwa zvinotevera mushure mekuenzanisa mitsetse.

Chii chiri kushandiswa kweawk muLinux?

Awk chinhu chinoshandiswa chinoita kuti mugadziri wepurogiramu anyore zvidiki asi zvinobudirira zvirongwa muchimiro chezvirevo zvinotsanangura mameseji maitiro anofanirwa kutsvakwa mumutsara wega wega wegwaro uye chiito chinofanirwa kutorwa kana mutambo wawanikwa mukati line. Awk inonyanya kushandiswa pateni yekuongorora uye kugadzirisa.

Unoita sei mitsara mishoma?

Kune BSD kana GNU grep unogona kushandisa -B num kuseta mitsetse mingani mutambo usati watanga uye -A num yehuwandu hwemitsara mushure memutambo. Kana iwe uchida nhamba imwechete yemitsara usati uye mushure mekushandisa -C num . Izvi zvicharatidza mitsara mitatu pamberi uye 3 mitsetse mushure.

Ndinoita sei grep mutsetse mufaira?

Iwo grep murairo unotsvaga kuburikidza nefaira, uchitsvaga machisi kune pateni yakataurwa. Kuti uishandise nyora grep , wozoita patani yatiri kutsvaga uye pakupedzisira zita refaira (kana mafaera) atiri kutsvaga mariri. Inobuda ndiyo mitsetse mitatu mufaira ine mavara 'kwete'.

Ini ndinowana sei folda muLinux?

Iwe unofanirwa kushandisa find command. Inoshandiswa kutsvaga mafaera paLinux kana Unix-senge system. Iwo murairo wekutsvaga uchatsvaga kuburikidza ne prebuilt dhatabhesi yemafaira akagadzirwa neyakagadziridzwab. Murairo wekutsvaga uchatsvaga live file-system yemafaira anoenderana nemaitiro ekutsvaga.

Ndinotsvaga sei zvinyorwa mumafaira ese muLinux?

Kuti uwane mafaera ane chaiwo mavara muLinux, ita zvinotevera.

1. Vhura yako yaunofarira terminal app. XFCE4 terminal ndiyo yandinoda.
2. Famba (kana zvichidikanwa) kune folda yauri kutsvaga mafaera ane mamwe mavara chaiwo.
3. Nyora murairo unotevera: grep -iRl "yako-zvinyorwa-kune-kuwana" ./

4 masendi 2017 g.